Biennials

Annual herb with a bushy and freely growing habit to 60-80cm. Has hairy leaves on hollow stems with pendant sprays of azure blue star-shaped flowers with five petals. It flowers freely all summer and early fall. Can be cut back to encourage more flowers and to control sprawl.

This delightful little poppy relative is a clump-forming perennial with blue-green leaves that highlight the bright golden yellow flowers to great effect. Suited to almost any soil conditions and settings, these plants do their very best in light woodland situations. Resistant to slugs and snails,...

This is one of the truly grand old-fashioned flowers of that almost mythical English Cottage Garden, which so many people strive to recreate. This biennial produces attractive rosettes of large leaves in the first year, with tall spikes of flowers of mixed colours up to 2m(6ft) or more in height...

These 1.5-2m(4-6ft) tall biennials are a good choice for informal plantings. The architectural form may be used to best advantage in modern gardens. The dried flower heads, although prickly, are superb for dried flower arrangements.

You can look at this plant as either a short lived perennial or a very long lived biennial, but however you wish to describe it, it is a beautiful plant for the mixed border or the cutting garden. The flowers dry superbly. This rosette-forming taprooted plant has heart-shaped basal leaves and bears...

Rose Campion makes an attractive accent in any garden. This erect, wooly silver-gray plant produces a succession of long-stalked purple-red flowers from late spring through the summer and into the early autumn. This biennial reseeds itself reliably, and may survive as a short-lived perennial....

This white form of Rose Campion comes reliably true from seed and makes an attractive accent in any garden. This erect, wooly silver-gray plant produces a succession of long-stalked white flowers from late spring through the summer and into the early autumn. This biennial reseeds itself reliably,...

This rosette-forming biennial has spiny white-veined and marbled, glossy dark green leaves. In the second year after sowing, the plant produces thistle-like purplish-pink flowerheads from summer to fall. Height to 5 feet. Suits a mixed or herbaceous border or a gravel garden.